>
> Dear Mr. Klopcic,
>
> Thank you for your e-mail message.
>
> Yes, we do!
>
> Although we have not been able to manufacture the old apparatus for
many
> years now - for various reasons - we have continued production of the
> replacement tubes.
>
> They are available under the item number WL0623 for $365.99 each, and
are
> currently in stock.
>
> The tube is listed in our current (2005) catalog on pages 815 and 816.
>
> I hope this information is useful.
>
> Sincerely,
>
> Martin Taylor
> Marketing Manager
> Sargent-Welch
> martin_taylor@vwr.com
> 847-465-7595
>
>
>
> "J. Terrence
> Klopcic" To:
>
> edu> Subject: e/m tubes
>
> 01/24/2005 12:31
> PM
>
>
>
>
>
>
> Several of us college lab directors have the "old" Sargent-Welch e/m
> apparatus which features Helmholtz coils that are about a meter in
> diameter
> and use a tube that is 18 cm in diameter. Note that this is
significantly
> larger than the currently advertised Circular Orbit e/m apparatus with
its
> 13 cm tube.
>
> Do you sell replacement tubes for the "old" apparatus?
>
> J. Terrence Klopcic
> Director of Laboratories
> Departments of Physics and Mathematics
> Kenyon College
>
>
>
>
>